>And that still does not justify the death of any of them.

Surely everyone is the physical cause of everything that results his action or inaction? We differentiate the world through all the interactions and then we get some langrange multipliers and whatnot, or we do it more carefully taking non-linear effects into account to still get some notion of responsibility.

Surely these people you mention are in fact responsible, and surely that should make them targets in case they increase deaths, destroy people's potential etc?